Blade-sharpener.



0. A. ROHRER & B. REINBAGH. BLADE SHARPENHR.

APPLICATION FILED DBO. 2o. 191a.

1,1 15,025. Patented 00s. 27, 1914.

12 13 If dAfl km/ Q Witnesses I Attorneys YHE NORRIS PETERS COL PHUTO-LITH M WASHINGTON, D C,

OSCAR A. ROI-IRER AND BRUCK REINBACI-I, 0F VIAVERLY, ILLINOIS.

BLADE-SHARPENER. 1

To all whom it may concern Be it known that we, Osoan AQRonnnn and BR'UCK REINBAGI-I, citizens of the United States, residing at Waverly, in the county ofMorgan, State of Illinois, have invented a new and useful Blade-Sharpener, of which the following is a specification.

This invention relates to a sharpener for.

siliently engage the triangular sharpening member and hold the same with the sharpening faces thereof at the required angle.

Afurther object is to provide a sharpening device in which the triangular shaped sharpening blade is held at adjusted angles with the handle which engages the same forming a guide so that the knife blade of the lawn mower or alliedtool will be sharpened, the cutting. face thereof being sharpened at the proper and predetermined angle. A further object is to provide a blade sharpener in which the handle will project beyond the sharpening member and form a guide holding the sharpening member at a certain and predetermined angle to the blade whereby the cutting edge of the blade will be sharpened and maintained at the proper angle to the blade.

WVith the foregoing and other objects in View which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter de scribed and claimed, it being understood that changes in the precise embodiment of the invention herein. disclosed, can be made within the scope of what is claimed, without departing fromathe spirit of the inven: tion. j i j In, the drawings accompanying this specification and forming a part thereof, the

Specification of Letters Patent.

Application filed December 20, 1913.

Patented Oct. 27, 1914.

Serial No. 807,980.

preferable embodiment of our invention is illustrated, in which a Figure 1 1s a View in perspective of our improved blade sharpener- Fig. 2 is a side View thereof. Fig. 3 is a view of the device with a slightly different form of locking member. Fig. 4 1s a side view of the modified form. Flg. 5 1s a View 111 IJGISpBCtIVQ of a somewhat modified form of the locking member illustrated in Fig. 1. Fig. 6 is a view in perspective of a somewhat modified form of the locking member illustrated in Fig. 3.

Referring to the drawings in which similar reference numerals designate corresponding parts throughout the several views, at is a triangular-shaped sharpeningmember which is provided withthe abrasive faces 5 which are adapted to contact with and sharpen blades of various cuttingarticles.

The triangular sharpening member may he made from the body portion of an ordinary triangular file should it be so desired.

Inorder to hold. the sharpening member in proper position, a handle is provided and is formed with the U-shaped body portion 0, from which project the angularly disposed arms 7 which are bent sharply upward at their ends as at 8, between which extends the holding bar 9. The arms 7, upwardly extending ends 8 and bar 9 rest against the two sides of the sharpening member and hold the same with the outlying sharpening face substantially perpendicular to the plane of the body portion 6, the same being clearly illustrated in Fig. 2 of the drawings. In order to rigidly hold the sharpening member so positioned, the locking member10 is provided and which is formed with the transversely extending end bar 11 and from which extend the projections 12 and which are connected to the arms 13. The arms 13 rest against the slde wall of the sharpening member and pro ect below the usshaped body portion 6. The arms then cross be neath the U-shaped body portion as at 14 and from which project the legs 15, which intertwine or bend around the sides ofthe' U-shaped body portion 6; Thusthe legs 15 and cross bars let will coact with the sides of the body portion 6 and hold the arms 13 and 7 in forced contact with the sides of the sharpening member so that it will be held .igidly in place. The portions 12 and 8 in conjunction with the end bars 9 and 11 constitute a guide for a blade 16 so that as the sharpener is moved longitudinally of the blade with the end bars 9 and 11 in contact therewith, the edge formed or sharpened upon the blade will be at a. predetermined and desired angle for the proper operation of the blade. The angle at which the cutting edge forms, depends uponthe use to which the blade is to be put and by the handle herein disclosed, the said angle may be varied by bending the portions 12 toward and away from the sharpening face 5 of the sharpening member.

A somewhat modified form of locking member 17 is illustrated in Figs. 3 and f and is formed with the cross bars 18 and intertwining legs 19. The arms which project from the cross bars 18 and which are indicated at 20 extend along the face of the sharpening member for a limited distance only and are connected by a cross bar 21. Thus the bar 21 will force the sharpening member up within the crotch or notch de--' fined by the arms 7 and portions 8 of the handle, thus holding the sharpening mem ber rigidlyin place. This construction as illustrated in Fig. 1 allows the sharpening device to be used with a blade 22 of some considerable width and also allows the blade to be sharpened at any desired angle or to sharpen a blade in which the angularity or obliquity of the cutting edge may vary throughout the blade. The cross bar 9 will act in the capacity of a ledge or shoulder preventing the blade from slipping laterally across the abrasive face of the sharpening member. Thus should one of the faces of the abrasive member become dulled the legs of the locking member may be entwined or engaged from the sides of the U-shaped body portion 6 which would allow the locln ing member to become released from the handle, thus releasing the sharpening member. The sharpening member may then be turned so as to present another of its abrasive faces. The entire device may be easily and cheaply constructed, and is formed of resilient wire so that it may be easily assembled and as readily disassembled.

The somewha modified forms of the locking members illustrated in Figs. 5 and 6 are similar to the locking members illustrated in Figs. 1 and 3, with the exception that'the double cross bars 14 and 18 are omitted and the cross bars 141 and 18 substituted therefor. This makes a somewhat stronger and neater appearing structure should it be so desired.

Having thus fully described our invention, what we claim is 1. A snap handle for a polygonal shaped sharpening member comprising a stationary member including a pair of connected spaced rods, the extremities of said rods being out of the plane of said rods and with the ends being bent sharply in a return direction, a locking member including a front and rear portion with a bar-like member extending laterally thereof at the point of division between the front and rear portion of said locking member, said bar-like member contacting with and pivoting upon the spaced rods of the stationary member, the rear portion of said locking member includ ing legs adapted to resiliently entwine with the spaced rods of the stationary member, the front portion of said locking member adapted to contact withthe said sharpening member and to force the same into interlocking relation with the sharply bent portion of the said stationary member.- I

2. A handle for a triangular shaped sharpening member including a stationary portion and a locking member, said stationary portion including a body portion of spaced rods secured. together at their extremities, the extremities of said rods being bent laterally, and then sharply in a return direction for a limited distance, and a bar extending between the extremities thereof, said locking member including an end bar, sides connected thereto and extending therefrom, the said sides being bent to conform with the triangular faces of the sharpening member, said sides being bentto form cross members contacting with and extending be tween the spaced bars of the stationary member, the said cross or transverse members of the locking member being bent rearwardly and forming legs interlocking with the spaced bars of the stationary body portion, the transverse members andinterlocking legs holding the said end bars and interlocking members in forced contact with the said triangularshaped sharpening member and holding the same rigidly in position in the stationary body portion.

8. A handlefor a sharpener of polygonal cross section including a stationary member, said stationary member including a front portion and a rear portion, the front portion being offset at an angle with respect rear portions of the stationary member, and as our own, we have hereto aflixed our sig the sald locking member further lncludingnatures 1n the presence of two witneses.

means resiliently engaging the rear portion OSCAR A. ROHRER, of the stationarv member and holding the BRUCK REINBACH. 5 front portion thereof into forced contact WVitnesses:

with the said sharpener. WM. A. DENNIS, In testimony that We claim the foregoing A. G. MOFFIT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatentzs Washington, D. G. 

